Where: Nei Mongol, China (41.3° N, 119.7° E: paleocoordinates 46.5° N, 111.6° E)

• coordinate stated in text

• basin-level geographic resolution

When: Barremian to Barremian (129.4 - 66.0 Ma)

• "Barremian-Aptian, ca. 125 Ma)" based on age of Lujiatun Beds; stratigraphic provenance questioned by Fowler et al. (2011), who suggested a Late Cretaceous age is possible.

• bed-level stratigraphic resolution

Environment/lithology: fluvial; lithified, gypsiferous, micaceous, tuffaceous, green sandstone

Size class: macrofossils

Collection methods: "privately collected" and reposited in the Long Hao Institute of Geology and Paleontology collection.

Primary reference: P. C. Sereno, L. Tan, S. L. Brusatte, H. J. Kriegstein, X. Zhao and K. Cloward. 2009. Tyrannosaurid skeletal design first evolved at small body size. Science [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 91404: authorized by John Alroy, entered by John Alroy on 18.09.2009, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)